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140.01 ms | 1399 KiB | 7 Q<?php
$rose = "black";
${"rose"} = "white";
$rose = "red";
print_r(${"rose"});
echo "\n\n";
${" "} = "white";
print_r(${" "});
echo "\n\n";
$arr{" "} = 99;
var_dump($arr);
$o = (object) $arr;
var_dump($o);
echo $o->{" "},"\n\n";
class x extends stdClass {
public $val;
function Show($n){
$this->val = $n;
return $this->val;
}
}
$s = new x();
echo $s->Show(100),"\n";
var_dump($s);